Global Patent Index - EP 0689151 A3

EP 0689151 A3 2000-01-19 - System for storage and communication of information

Title (en)

System for storage and communication of information

Title (de)

System zum Speichern und Übertragen von Information

Title (fr)

Système pour stockage et communication d'information

Publication

EP 0689151 A3 (EN)

Application

EP 95302630 A

Priority

US 25152294 A

Abstract (en)

[origin: EP0689151A2] A system and a method for storage and communication of information between at least one first information containing terminal (10) and a second terminal (12), are disclosed. A random number is generated (266) within the first terminal (10) in response to receipt of a begin signal from the second terminal (12), and the random number is compared with a count incremented and maintained by a digital counter (264) within the first terminal (10). When the random number is equal (70) to the count, the first terminal (10) transmits (72) a request-to-transmit signal (RTT) to the second terminal (12). If the second terminal (12) responds with a first acknowledgment, the first terminal (10) then sends (80) an information-containing signal to the second terminal (12). If the information-containing signal is correctly received, the second terminal (12) responds by transmitting a second acknowledgment which is received by the first terminal (10). The storage and communication of information method disclosed may be employed in a supermarket checkout system, with the first information-containing terminals (10) comprising RFID tags. <IMAGE> <IMAGE> <IMAGE>

IPC 1-7 (main, further and additional classification)

G06K 7/10; H04B 7/24; H04L 12/28; H04L 12/403; H04L 12/413; H04L 12/56; H04L 29/08

IPC 8 full level (invention and additional information)

G06K 7/00 (2006.01); G07G 1/00 (2006.01); H04L 12/28 (2006.01)

CPC (invention and additional information)

G06K 7/10059 (2013.01); G06K 7/0008 (2013.01); G07G 1/0054 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 0689151 A2 19951227; EP 0689151 A3 20000119; EP 0689151 B1 20030827; AT 248406 T 20030915; CA 2146276 A1 19951201; CA 2146276 C 19980630; DE 69531569 D1 20031002; DE 69531569 T2 20040617; US 5530702 A 19960625

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